The major threats to land degradation on small island states is reducing available arable land in small island state is the coastal erosion to increasing seal level rise and damaged from storm surge during cyclones, sinking of coastal areas to tectonic movement. Increasing Spreading of invasive weeds into wood land areas killing native forest and replacing native forest and hence making land productivity susceptible to desertification. Local farmers living and making living with livestock are noticing changes in in their stock to declining but has little information on the current changes of global climatic conditions. The changes in Vegetation and reducing land to coastal erosion is a major environmental threats to subsistence agriculture especially with raising livestock that requires large areas. Farmer needed information on the likely changes in environmental conditions and hence can learn to adapt in agricultural activities.